How to make Lan between two computers

Home network
Take a crosss cable.A cross cable has 2 connectors on both sides.connect one with the Computer A and other with the computer B.These connectors are called RJ45 

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NOW assign the Ip address  by going into My Network Places.Go to my network connections .you will see a network connection.click it go to properties then go to TCP/IP Assign IP Address: 10.1.1.1
Subnet mask: 255.255.255.0
Gateway: null
DNS Servers:null
press ok.
Now come to computer B.Go to my network places go the connection properties go to TCP/IP Assign the following address 
IP Address: 10.1.1.2
Subnet mask: 255.255.255.0
Gateway: null
DNS Servers:null
press ok.
1 now go to Start 
2 click Run

3 write cmd(A command prompt will open)

4 write ping 10.1.1.2 from the computer A or 10.1.1.1 from the computer B
if the connection is successful it will show reply from (IP).
If connection is not established it will show request time out.
Share files from PC A to PC B and enjoy.Learn how to share click here